openPMD-api
ParticleSpecies.hpp
1 /* Copyright 2017-2020 Fabian Koller
2  *
3  * This file is part of openPMD-api.
4  *
5  * openPMD-api is free software: you can redistribute it and/or modify
6  * it under the terms of of either the GNU General Public License or
7  * the GNU Lesser General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * openPMD-api is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License and the GNU Lesser General Public License
15  * for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * and the GNU Lesser General Public License along with openPMD-api.
19  * If not, see <http://www.gnu.org/licenses/>.
20  */
21 #pragma once
22 
23 #include "openPMD/backend/Attributable.hpp"
24 #include "openPMD/backend/Container.hpp"
25 #include "openPMD/ParticlePatches.hpp"
26 #include "openPMD/Record.hpp"
27 
28 #include <string>
29 
30 
31 namespace openPMD
32 {
33 
34 class ParticleSpecies : public Container< Record >
35 {
36  friend class Container< ParticleSpecies >;
37  friend class Container< Record >;
38  friend class Iteration;
39 
40 public:
41  ParticlePatches particlePatches;
42 
43 private:
44  ParticleSpecies() = default;
45 
46  void read();
47  void flush(std::string const &) override;
48 };
49 
50 namespace traits
51 {
52  template<>
54  {
55  template< typename T >
56  void operator()(T & ret)
57  {
58  ret.particlePatches.linkHierarchy(ret.m_writable);
59 
60  auto& np = ret.particlePatches["numParticles"];
61  auto& npc = np[RecordComponent::SCALAR];
62  npc.resetDataset(Dataset(determineDatatype<uint64_t>(), {1}));
63  npc.parent = np.parent;
64  auto& npo = ret.particlePatches["numParticlesOffset"];
65  auto& npoc = npo[RecordComponent::SCALAR];
66  npoc.resetDataset(Dataset(determineDatatype<uint64_t>(), {1}));
67  npoc.parent = npo.parent;
68  }
69  };
70 } // traits
71 } // openPMD
Definition: ParticlePatches.hpp:32
Definition: Dataset.hpp:36
Container Element Creation Policy.
Definition: Attributable.hpp:46
Logical compilation of data from one snapshot (e.g.
Definition: Iteration.hpp:35
Public definitions of openPMD-api.
Definition: Date.cpp:28
Definition: ParticleSpecies.hpp:34
Map-like container that enforces openPMD requirements and handles IO.
Definition: Container.hpp:70